<!--
 * @Description: react
 * @Author: charles
 * @Date: 2021-11-08 16:13:26
 * @LastEditors: charles
 * @LastEditTime: 2021-11-09 12:18:38
-->
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>react</title>
  <script src="https://cdn.bootcdn.net/ajax/libs/react/17.0.2/umd/react.development.min.js"></script>
  <script src="https://cdn.bootcdn.net/ajax/libs/react-dom/17.0.2/umd/react-dom.development.min.js"></script>
  <script src="https://cdn.bootcss.com/babel-standalone/6.26.0/babel.min.js"></script>
  <script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
</head>
<body>
  <div id="app"></div>
  <script type="text/babel">
    // 组件
    const {useEffect,useState} = React;
    function App(){
      const [resp,setResp] = useState({})

      const loadArticles = ()=>{
        let url = "http://121.199.29.84:8002/index/pageQueryArticles"
        let params = {page:1,pageSize:10}
        axios.get(url,{params}).then(( {data} )=>{
          setResp(data)
        })
      }
      useEffect(loadArticles, ['resp']);

      let content ;
      if(resp.status === 200){
        content = (
          <ul>
            {
              resp.data.list.map(item => {
                return (
                  <li key={item.id}>{item.title}</li>
                )
              })
            }  
          </ul>
        )
      } else {
        content = <div>{resp.message}</div>
      }


      return (
        <div>
          <h2>资讯管理</h2>  
          {content}
        </div>
      )
    }
    // 渲染
    ReactDOM.render(<App/>,document.getElementById('app'))


  </script>
</body>
</html>
